One of the most entertaining and effective ways to improve a foreign language is through watching TV and movies. It's a relaxed approach. Simply watch French movies in their original version to practice your French language skills—whether with English or French subtitles, or even without them if you're more advanced.
By immersing yourself in French cinema, you can simultaneously train several language skills: listening, understanding, pronunciation, and even spelling if you use subtitles. You don't have to understand every single word.
The actors' gestures and facial expressions, combined with the plot, help you understand the context. Unfamiliar French vocabulary will become clearer over time. You'll consciously think about some words, and you'll even subconsciously remember others. The more often you watch, the more your general feel for the language improves.