As with A Boy Named Charlie Brown (1969), the Peanuts characters
get onscreen credit in the opening credits, but with Snoopy getting
top-billing, of course!
At the end, just as an annoyed Charlie Brown exits stage left, Snoopy and
Woodstock are still on top of Snoopy's doghouse, with Woodstock typing the
closing credits (which appear over/around the two in typewriter text) on
Snoopy's typewriter and Snoopy directing him like a music conductor. In a
similar manner to A Boy Named Charlie Brown (1969), as Woodstock
types the credits, the film's crew members, corresponding to the names in
the credits, appear in groups in the background.