How many movies have Don Messick and William Hanna collaborated on?

They have worked on 31 movies together! Their first movie together was Hey There, It's Yogi Bear! (1964) while their highest rated movie together was The 1st 13th Annual Fancy Anvil Awards Show Program Special: Live in Stereo (2002). They have not worked together since Cartoon Network Christmas: Yuletide Follies (2004). They are most known for their animation films together.

Cartoon Network Christmas: Yuletide Follies (2004)

Role
(archive footage)
Role
(voice)
Crew
Characters

Scooby-Doo's Spookiest Tales (2003)

Role
Additional Voices (voice)
Crew
Characters

Scooby-Doo! Winter WonderDog (2002)

Role
Scooby-Doo (voice) (archive footage)
Crew
Producer
Crew
Director

Scooby-Doo Meets Batman (2002)

Role
Scooby-Doo / Professor Flakey (voice) (archive footage)
Crew
Director
Crew
Producer

The 1st 13th Annual Fancy Anvil Awards Show Program Special: Live in Stereo (2002)

Role
Scooby-Doo (voice) (archive footage) (uncredited)
Role
Himself (archive footage) (uncredited)
Crew
Characters

Scooby-Doo's Creepiest Capers (2000)

Role
Scooby-Doo (voice)
Crew
Director

Scooby-Doo on Zombie Island (1998)

Crew
In Memory Of
Crew
Characters

A Flintstones Christmas Carol (1994)

Role
Bamm-Bamm Rubble / Joe Rockhead (voice)
Crew
Executive Producer

Scooby-Doo! in Arabian Nights (1994)

Role
Scooby Doo / Boo-Boo Bear (voice)
Crew
Executive Producer

Yogi the Easter Bear (1994)

Role
Boo Boo / Ranger Smith (voice)
Crew
Executive Producer

The Flintstones: Hollyrock a Bye Baby (1993)

Role
Baby Bamm-Bamm/Lot Security Guard/Tour Bus Driver (voice)
Crew
Director

Tom and Jerry: The Movie (1992)

Role
Droopy (voice)
Crew
Characters

Jetsons: The Movie (1990)

Role
Astro (voice)
Crew
Director
Crew
Producer

Scooby-Doo! and the Reluctant Werewolf (1988)

Role
Scooby-Doo / Scrappy-Doo (voice)
Crew
Executive Producer

Scooby-Doo and the Ghoul School (1988)

Role
Scooby-Doo / Scrappy-Doo (voice)
Crew
Executive Producer

Yogi and the Invasion of the Space Bears (1988)

Role
Boo Boo / Ranger Smith (voice)
Crew
Executive Producer

Yogi Bear and the Magical Flight of the Spruce Goose (1987)

Role
Boo Boo / Mumbly (voice)
Crew
Executive Producer
Crew
Songs
Crew
Lyricist

Yogi's Great Escape (1987)

Role
Boo Boo / Ranger Smith
Crew
Lyricist

The Jetsons Meet the Flintstones (1987)

Role
Astro / R.U.D.I / Mac / Announcer / Store Manager / Robot (voice)
Crew
Executive Producer

Scooby-Doo! Meets the Boo Brothers (1987)

Role
Scooby-Doo / Scrappy-Doo (voice)
Crew
Executive Producer
Crew
Songs

Yogi's First Christmas (1980)

Role
Boo Boo / Ranger Smith / Herman the Hermit (voice)
Crew
Executive Producer

Scooby Goes Hollywood (1979)

Role
Scooby-Doo (voice)
Crew
Executive Producer

The Flintstones Meet Rockula and Frankenstone (1979)

Role
Igor (voice)
Crew
Executive Producer

The Flintstones: Little Big League (1978)

Role
Crew
Executive Producer

A Flintstone Christmas (1977)

Role
Ed the Foreman / Otis (voice)
Crew
Executive Producer

Charlotte's Web (1973)

Role
Jeffrey (voice)
Crew
Producer

Yogi's Ark Lark (1972)

Role
Boo Boo / Pixie / Atom Ant / So-So / Moby Dick / Touche' Turtle (voice)
Crew
Director
Crew
Producer

Jack and the Beanstalk (1967)

Role
Cat / Mice (voice) (uncredited)
Crew
Executive Producer

The Man Called Flintstone (1966)

Role
Ali / Various Voices (voice)
Crew
Director
Crew
Story

Alice in Wonderland or What's a Nice Kid Like You Doing in a Place Like This? (1966)

Role
Doormouse
Crew
Producer

Hey There, It's Yogi Bear! (1964)

Role
Boo-Boo / Ranger John Smith / Ranger Jones (voice)
Crew
Director
Crew
Producer
Crew
Story