There are several reasons why people might choose to watch similar movies. Here are a few possible explanations:

Personal Preferences: If someone enjoys a particular genre or style of movies, they may find comfort and satisfaction in watching similar films. For example, if someone is a fan of action movies, they may be drawn to other action-packed films because they enjoy the adrenaline rush and excitement that comes with the genre.
For example- Movies like American Psycho and Movies like 365 days.

Familiarity: Similar movies often have common themes, storytelling techniques, or character archetypes that viewers find familiar and relatable. Watching similar films can evoke a sense of nostalgia or provide a sense of predictability that some people find comforting or enjoyable.

Discovering New Favorites: When you watch movies similar to the ones you already enjoy, you increase the likelihood of finding new films that align with your tastes. By exploring a specific genre or subgenre, you might stumble upon hidden gems or lesser-known films that you may not have discovered otherwise.

Cultural Appreciation: Similar movies often share cultural or regional elements, such as language, customs, or traditions. Watching movies from a specific culture or country can provide insights into different perspectives, broaden one's horizons, and foster a greater appreciation for diversity and global cinema.

Emotional Connection: Movies have the power to evoke a wide range of emotions, and similar films can tap into those emotions in a consistent or familiar way. If a person enjoys movies that make them laugh, cry, or feel inspired, they may seek out similar films to experience those emotions again.

Artistic Exploration: Watching similar movies can allow viewers to delve deeper into specific themes, visual styles, or narrative techniques. By studying different films within a particular genre or director's filmography, individuals can gain a deeper understanding of the artistic choices made and the impact they have on storytelling.

Ultimately, whether someone chooses to watch similar movies or explore different genres entirely depends on their personal preferences, desire for familiarity, and curiosity to discover new films and perspectives.
Let me know your thoughts on it?