Movie audio is notorious for quiet dialogue buried under loud music and effects — a problem that sits squarely in EQ territory.
A boost around 2.5kHz often brings speech forward without needing to raise the overall volume. If explosions and score are overwhelming everything else, a modest cut at 60Hz can tame the low-end rumble that masks quieter dialogue.
Films are typically mixed for cinema sound systems with far more dynamic range than a home TV or laptop can reproduce, which is exactly why dialogue can disappear at home even though it sounded fine in a theater — EQ can help compensate for that gap.