Select all inputs below form

Select all inputs below form

I have structure like below (inputs are not direct childs for form1):
<form id="form1">
<div>
<div>
.... some other tags, more nested
<input ...>
<input ...>
...
<input ...>
</div>
<input...>
....
</form>

how to select all inputs that are "below" form1 (direct or no direct childs) ?
$('#form1 ..... ') ???