Sacado de IMDb:
All UK versions omit shots from the scene where the rat is plunged in the oxygen fluid. The shots showing the rats breathing in the fluid are substituted with close ups of actors describing what's happening.As a result of the British Board of Film Classification cutting the rat sequence after the RSPCA requested it on grounds of cruelty, 45 seconds were removed.For the original UK VHS release of the Special Edition, the "rat sequence" was poorly edited. This included an alternate shot of Monk removing the rat from Hippy's shoulder, shown at a slightly different angle and clearly unfinished as it was of poor quality. This also resulted in the entire scene being displayed at a ratio of 1.85:1, before reverting back to 2.35:1 for the rest of the film.Por lo que supongo que así se estrenó y asi se edito o emitió en cualquier formato, salvo la primera edición en VHS.The original UK VHS release (not the director's cut) featured the 'rat' scene in its entirety.