The perturbation theory of a large class of scalar field theories in 2 and 3 dimensions can be shown to be Borel resummable using arguments based on Lefschetz thimbles. In this class of theories the behavior of the observables at strong coupling can be successfully recovered by resumming the perturbative series. As an example I will consider the resummation of the two-dimensional ??^4 theory using eight orders of perturbation theory and show that it reproduces the correct results up to critical point.