A side letter gives one investor terms the fund agreement doesn't: lower fees, co-invest rights, more reporting. A most favoured nation clause lets others see, and sometimes elect, what was given.
What the film says
Two investors. Same fund. Different deal. Everyone signs the same fund agreement. But a big investor can ask for its own extra letter. Lower fees. A right to invest alongside the fund. More reporting. That's a side letter. Smaller investors can ask too, through a most favoured nation clause. It lets them see, and sometimes elect, what others got. If you never ask, you never get it.
In the glossary: Side letter
A simple example with round numbers, not advice. Terms vary by fund.
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