Before the British can ask themselves what the Romans can possibly do for them they are not too terribly pleased with the bothersome invasion. Anticlimax, cousin of Asterix, sneaks off to Gaul for help. Getafix makes a barrel of magic potion and Asterix, Obelix and Dogmatix courier it back to Britain. Many, many beaten, bruised, and broken Romans make the mistake of getting in their way.
The jokes and visual humor just don't stop. You'll be grinning from ear-to-ear when watching Asterix in Britain. The animation has such a detailed quality to it that the film nearly rivals vintage Disney. The music too, is also lovely. A score CD was produced in France, but it's long out of print. Bill Oddie is the voice of the little warrior this time around, while amusing English stereotypes fill out the rest of cast.
A favorite of mine since I was a kid, I first saw Asterix in Britain on BBC2 one Xmas morning. I nearly wore out the tape I recorded it on. My advice, buy the DVD. Even for kids raised on CGI it's a winner.