It's a decent fantasy film, nothing spectacular, but still pleasant to watch, particularly for those who appreciate fantasy elements like magic, dragons, and that sort of thing. The story comes from a book, which I haven’t had the chance to read, though it seems geared toward a younger audience. The plot is uncomplicated and easy to follow, designed primarily to entertain through adventure, some humor, and visual effects—nothing more than that. I found Jeff Bridges quite entertaining in his part as an eccentric witch hunter who's become rather detached from the world, seemingly only concerned with eliminating witches. Ben Barnes’ portrayal of the apprentice, Seventh Son, didn’t leave much of an impression on me, though Julianne Moore is effective as the antagonist witch. Given its focus on fantasy, magic, and dragons, special effects are expected, and this film has them in abundance. I thought they were generally well-executed and enhanced the narrative without feeling excessive. Overall, I enjoyed it; it’s a straightforward adventure with touches of humor, appealing visuals, a little romance, and action sequences.

Source on TMDB