On paper, Absolutely Anything sounds like a winning combination: not only does Terry Jones’s sci-fi comedy boast the (unofficial) screen reunion of the surviving Monty Python crew, but it’s also the final film appearance of the late, great Robin Williams – as a talking dog, no less. Despite everything, the film is wholly unremarkable, failing to generate more than a handful of chuckles throughout. Alongside lead Simon Pegg – who has helped pen some of the best British comedies in recent years – the talents of Messrs Cleese, Gilliam, Idle, (writer & director) Jones, Palin and Williams are all but…