The 1981 film Arthur was about a lovable drunk, back in the days when that was an acceptable basis for a comedy. With the talented Dudley Moore in the title role, it was not only hilarious, but also touching. Critics hailed it as one of the best films of the year, and it has held up surprisingly well, with a 90% rating on Rotten Tomatoes. If you recall Arthur fondly, you'll want to learn some trivia about the movie.
10. Liza Minnelli got on the wrong bus at one point.
She thought that she was getting on the bus that was being used for the movie but when she figured it out she realized that the whole crew had seen her get on the wrong bus.
9. Dudley Moore apparently based his bad behavior on Peter Cook.
The behavior in question was what led to the falling out between Moore and his former friend Cook. It was used as inspiration for the film.
There's more to know about Arthur at TVOM.