A tiny Wall Street firm is getting a huge payday on a big Hollywood deal

Two boutique banks landed key roles on Lionsgate's $4.4 billion deal for the cable and satellite television network Starz.

LionTree Advisors is the sole financial adviser to Starz and PJT Partners is the lead financial adviser to Lionsgate.

JPMorgan, Bank of America Merrill Lynch, Deutsche Bank, and Credit Suisse will also be financial advisers to Lionsgate, with JPMorgan, BAML, and Deutsche Bank providing financing.

LionTree is expected to earn between $20 million and $25 million in sell-side advisory fees, according to the consultant Freeman & Co.

PJT Partners is expected to earn $15 million to $20 million in buy-side advisory fees.

LionTree, a tech, media, and telecom-focused boutique, was launched by the former UBS banker Aryeh Bourkoff in 2012. It has advised Liberty Global and Virgin Media, and, last year, Charter Communications on its $55 billion deal for Time Warner Cable.

The boutique firm employs fewer than 50 people, according to Bloomberg.

PJT Partners is a combination of PJT Capital, an advisory firm led by former Morgan Stanley dealmaker Paul J. Taubman, and Blackstone's financial and strategic and advisory business.

It now employs about 350 people.