Slow-motion is a dramatic tool in trailer editing, but it can lose its impact when used excessively. One common mistake is overloading a trailer with slow-motion sequences, which can reduce the intensity of pivotal moments. Slow motion should be reserved for genuinely impactful moments, such as a dramatic reveal or emotional beat. Slow-motion can heighten the drama and create a sense of grandeur when used sparingly and purposefully. Otherwise, it can feel repetitive and deflate the excitement that trailers are meant to generate.