Intermittently, SpongeBob's latest feature is very funny indeed, even for non-devotees of the original series.
In the live action prelude, Antonio Banderas is excellent value as crusty sea captain Burger-Beard, who narrates the animated story to an audience of hungry seagulls.
As in Pee-wee's Playhouse, the dialogue and jokes are antic enough to appeal to kids but also tip a wink to adult viewers. The problem is squeezing out enough gags and plot reversals to justify the length.
After about 20 minutes in Bikini Bottom, we are more or less gorged on jokes about Krabby Patties. That doesn't stop the film-makers from continuing to feed them to us.