Withnail and I with Daniel Day-Lewis

One of the all-time great comedies, produced by Handmade Films (Which had been created by George Harrison solely to produce Monty Python's The Life of Brian). Originally, a multitude of actors read for the part of Withnail, so we almost had this incarnation:

I don't know what my fri--associate said. 

The Set-Up 
Bruce Robinson had been an actor in Camden Town in the 1960s and wrote what had intended to be a novel about his experiences. Later, he adapted it into a film and every up and coming actor read for it. Along with Daniel Day-Lewis, both Bill Nighy and Kenneth Branagh read for the part before Richard E. Grant was cast. 

The Execution 

The film, about two struggling actors, is a phenomenal film. To quote actor Ralph Brown who plays the character Danny "There isn't a crap bit in it." However, should Robinson have chosen to go in a different direction and cast Daniel Day-Lewis, perhaps he and Grant would have switched career trajectories...

What might have been