Flash Gordon, done in 1980, music by Queen. Was to be done by George Lucas, but he did Star Wars instead. The acting is over the top, classic cheesy lines. Very funny. Worth seeing for Ming's wedding vows, Sam J. Jones' acting and of course Timothy Dalton and Brian Blessed.
I watched it last night and it had me laughing out loud. The writing is great in that cheesy way.
Loved it myself, gotta get the DVD!