This Bugs Bunny wabbit production cel is from 1991 Looney Tunes Blooper Bunny, and comes with a signature from the new voice of Bugs Bunny, Eric Bauza.
Here's the cartoon, and you'll find the Bugs cel is from at around 2:50 seconds :
(Blooper) Bunny is a Merrie Melodies animated short film directed by Greg Ford and Terry Lennon, with music by George Daugherty, produced in 1991 by Warner Bros. Animation. Featuring the voice talents of Jeff Bergman and Gordon Hunt, the short is a parody of some of the specials produced for Bugs Bunny's 50th anniversary the previous year. The short never received its intended theatrical release and was shelved for several years. It was finally given a television premiere on June 13, 1997, after Cartoon Network discovered the film sitting unseen in the vaults. It is featured on the Looney Tunes Golden Collection: Volume 1 as of 2003.
The cartoon opens with a short special, celebrating Bugs Bunny's 51½th Anniversary Spectacular. Once that is finished, what happened earlier that day is shown, with a backstage look at the characters (featuring 3D rendering of the scenery). Bugs is shown rehearsing his one line in the special. Elmer Fudd is shown trying to use minoxidil to regrow his hair. Daffy Duck and Yosemite Sam are shown only begrudgingly going along with the act, complaining non-stop until called to their places by the director. They attempt a performance, which results in a series of animated "bloopers".
Bugs Bunny begins to dance, but the music is slightly out of tune and the record skips. He then dryly looks at the camera and says, "Ehh...What's up, Doc?" in an annoyed and sarcastic voice. The director and producers laugh as Bugs walks off stage. He then peeks back in to say "Monotonous, isn't it?", which gets the director and producers laughing again and right when the screen fades to black, the record scratches.
Bugs halts the production midway, explaining he noticed a loose floorboard which could pose a hazard to his "esteemed fellow thespians". He suggests cutting the action back and readjusting the camera.
Bugs misses the cane when it flies out.
The cane is thrown before Bugs is ready to catch it.
While waiting for the cane to be thrown, it becomes clear that Daffy Duck has refused to throw it to Bugs. According to Daffy, his contract states that he is not supposed to throw canes to "stupid rabbits" and that Bugs' people spoke to his, resulting in the director agreeing to have someone else throw it in Daffy's place.
Daffy enters the stage at the exact time that Bugs does, saying that he thought it was a vast improvement as he walks away, only to bump his head on the boom mike.
Daffy does not appear when he is supposed to. Offstage, Daffy is heard telling Bugs, the director and the producers to wait, followed by the sound of a toilet flushing. As Daffy then rushes onto the stage dancing, the director yells in exasperation, "Cut! CUT! CUT!"
Elmer Fudd fires a real gun as opposed to a prop, grazing Daffy's head. Bugs scolds him, but Elmer responds that he thought that it would be "a gweat, big birthday surpwise if after 51 ½ years of twying, [he] finally bwasted [Bugs]". Daffy starts yelling at Elmer for not using the prop gun and neglects Bugs's insistence on cutting. As he walks away telling Elmer to expect his lawyers to call him, he steps on the loose board Bugs had avoided earlier, and the board strikes him in the face and goes through his beak. When Bugs asks if they can cut now, Daffy grumbles, "You smug son of a—" and is then cut off.
Daffy dances onto the stage with the board still stuck to his face. Bugs uses a hand mirror to reveal this to Daffy. When he pulls it off, he yanks his beak off as well in the process, but continues speaking and where his beak was, a mouth appears, though he fails to notice it.
Everything plays out correctly until Yosemite Sam emerges from the cake with a scowl on his face and two Cowgirls come up and spruce him up. The director asks him to act a little more enthusiastic and caring for the next take. Yosemite Sam reluctantly agrees and goes back into the cake, mumbling "But I hates rabbits".
The spectacular performance is done perfectly, except for one thing, as Bugs puts it – there were supposed to be five rockets, but Sam replies "There were five! And I lit 'em, too!". The fifth rocket, attached to Sam's belt, sends him flying about before crashing into the camera. He then yells at Bugs, calling him a "low down flop-eared son of a kangaroo", along with his usual cursing (which lasts throughout the credits) before being silenced by an unseen glass object. Bugs then suggests that what had just happened can be fixed in the editing before one of the producers asks, "Can we go to lunch now?" The familiar "That's All Folks" runs up the screen at the very end as if written in the film emulsion (like on raw footage).
(Blooper) Bunny was produced at a time when newer Looney Tunes shorts were being released to introduce the Warner cartoon characters to a younger, more modern generation — a process that was, thanks to the tepid reception of 2003's Looney Tunes: Back in Action, eventually discontinued for some time from 2004 to 2009. The film was animated using a combination of both new computer technology and traditional cel animation — a first for a Warner Bros. cartoon — with three-dimensional rendering distorting the background in the "backstage" scenes to give the appearance of a handicam being used. The first "backstage" scene in the film, a sequence that goes on for nearly a minute and a half without a cut, is, according to co-director Greg Ford, one of the single longest uninterrupted shots ever attempted in animated cartoons.
The short features several direct references to some of the previous output of Warner Bros. animation department. During the first, aforementioned "backstage" scene, the name of Bosko, the first true Looney Tunes star, can be seen on one of the dressing room doors for a few frames (ironically, the Warner Bros. studio did not own the rights to Bosko at the time). Midway through the film, there is also a deliberate homage to the "Hunting Trilogy" made popular by Chuck Jones, of whom Ford reportedly holds great admiration. Additionally, during the end credits, the theme song of One Froggy Evening, another Chuck Jones creation, can be heard.