GINTAMA MOVIEEEEE

I've never watched Gintama but is it really that good? The mental image I've got of after reading its synopsis is that's pretty similar to Inuyasha while the main character is like Spike from CBB.

Gintama is great because of its comedy, there is no beating around the bush on that. Give the first few episodes a watch and if you don't laugh its probably not for you.

While the show does have some really good action arcs, they only tend to last a handful of episodes, and pop up somewhat rarely, its comedy and characters are where it really shines.

Also I'd say Gintoki is half Kenshin from Ruroni Kenshin and half Spike from Cowboy Bebop. Dunno where the Inuyasha bit comes in though, I can't say I notice many similarities.