I grew up as a fan of Asterix and Obelix, and I have the box set of the old animated movies, and they are FUNNY!
Apparently this movie is based on the book Asterix and the Normans, but the creators were incapable of doing a straight Asterix adventure.
It has been done using that Hollywood template where big name actors voice the characters, and every line seems to have a double meaning. Yes, I am Asterix, but I also know that I am a character in a movie, and here, look at these cool topical references I am making. All references which will look painfully out of date in ten years.
And then they punish you at the end with a Celine Dion song. Yikes!
Maybe they were concerned with cleaning up Asterix and Obelix for a new generation, removing all those horribly politically incorrect references. And removing all the humour while they are at it.
Go with the original movies, and your kids will thank you.