I guess that "Delirious" was mostly one of John Candy's innocuously silly placeholders in between his really great roles, but it's still a fairly entertaining one. Maybe not rip-snorting hilarity - after "Planes, Trains and Automobiles", it's hard to imagine Candy in a funnier role - but an OK way to pass time. As a screenwriter who gets knocked out and wakes up a character in his own show, Candy makes the most of his role. Among the other cast members are Mariel Hemingway, Raymond Burr (in his final theatrical role), Jerry Orbach, Robert Wagner and Margot Kidder.
Oh, and if you think that you recognize "Hungarian Rhapsody #2", the classic Looney Tunes cartoons often used it: "Rhapsody in Rivets", "Rhapsody Rabbit", "Wise Quackers" and "What's Up, Doc?", to name a few. Later, "Who Framed Roger Rabbit" had Daffy Duck and Donald Duck play it on pianos and undermine each other's performances.
Oh, and if you think that you recognize "Hungarian Rhapsody #2", the classic Looney Tunes cartoons often used it: "Rhapsody in Rivets", "Rhapsody Rabbit", "Wise Quackers" and "What's Up, Doc?", to name a few. Later, "Who Framed Roger Rabbit" had Daffy Duck and Donald Duck play it on pianos and undermine each other's performances.