After opening April 4 in the UK, Son of Rambow started last night at the Lyric, and I'll go to the 7 o'clock show and then volunteer at the concession stand for the later show.
The film is written and directed by Garth Jennings (who also directed the 2005 Hitchhiker's Guide to the Galaxy) of the production company Hammer and Tongs. Jennings tells Andrea Hubert in an interview with him and his H&T production partner, Nick Goldsmith, in the March 29 Guardian, "Boys in the Mud."
Imagine if you'd never watched TV, and the first thing you ever saw was Stallone stitching up his own arm. How inspiring would that be? How much would you want to be Stallone?
Stallone reported likes the film but it took a long time to get it to theaters. In an interview with Amber Wilkinson, Jennings explains about the delay from its preview at Sundance in 2007,
It's taken me ages again. I can't do anything quickly, it drives me mad!
Round about June  I thought, well that's the end of that, but it was one of those things where everyone was very positive about it and it was going to come out but when we realised we were going to have to go through a whole bunch of legal things – very formal, very amicable, but we realised we'd have to go through them nonetheless - we thought, 'Oh God'.
You feel like momentum has gone – and I know that that counts for something and maybe we lost something, who knows? But now that it's coming out that all goes away.