Not quite epic, but definitely a special satisfaction.
Tristram Shandy: A Cock and Bull Story is based on the novel by Laurence Sterne called, aptly: The Life and Opinions of Tristram Shandy, Gentleman. It was first published in 1759 and, while I haven't read the book, I'm told that it's quite humorous and full of that dry wit British comedies are noted for. This film version is, regrettably, light on the laughs.
The conceit here is that Tristram Shandy (the book) is, according to the characters in the movie, "unfilmable." Nevertheless, a stalwart production team is attempting the impossible, with Steve Coogan playing himself playing the eponymous Tristram. Coogan is supported by Rob Brydon, who plays himself playing Tristram's uncle, Toby. There's a bit of a power struggle between Coogan and Brydon, which is actually the only funny aspect to the entire film. The rest is straight drama, for the most part, as we follow Coogan around, doing the things that we expect film actors to do: review rushes (or "dailies" here in the States), deal with tabloids, manage personal romances with girlfriends and coworkers, etc.
An adequate series finale best viewed by fans who grew up watching these films.
Funny to a fault that will disappoint some viewers but won't be enough to keep audiences away.
A richer story and separate plots for each character make this sequel successful.
It's not Hitchcock, but it isn't trying to be either.
If the audience is familiar with the stories, it will be wonderful to see them come alive, especially in the hands of a fellow fan.