Miller's Crossing owes a lot of its goodness to being a knockoff of Dashiell Hammett's The Glass Key. Julian Symons was possibly right in thinking that was even better than The Maltese Falcon.
Comparing Delirious to Stranger Than Fiction, Pleasantville and Tootsie because of random elements in the construction seems a little odd. Delirious is a farce. The movie to compare it to is Soapdish. The trapped on TV element means it should be compared to that John Ritter movie about being trapped on Hell's TV (Stay Tuned?) Delirious comes up average, or above average if you like John Candy.